Isn’t Bordier butter all about texture and generally good for earing on its own like on breads etc.? It may be a waste to cook with Bordier butter, just use a good quality butter and that’s all. Please correct me if I am wrong.
I don’t know what Bordier butter is, but my wife and I get really fancy Irish or Amish butter, and I have recently had to start insisting that we keep some regular non-premium butter around for just this reason. It feels wasteful to grease a pan with super-fancy premium butter, or to use it in certain recipes.
They sell cook’s butter (called «Brut de Baratte») which is about half the price and really nice to work with.